Locomotive and other furnace.



A. F. KINGSLEY.

LOOOMOTIVE AND OTHER FURNACE.

APPLICATION FILED AUG. 27, 1908.

Patented Dec. 21, 1909.

2 SHEETSSHEET 1.

l r I 7.

ATTOM'EYS A. F. KINGSLEY.

LOGOMOTIVE AND 0mm rummcs.

APPLICATION FILED AUG. 27, 1908. 943,942, Patented Dec. 21, 1909.

2 SHEETSSHEET 2.

AJMT/ZESSZ'S: [gm 5mm? e Jt KQZZf ATTORNEYS taken on the line 4-4 of Fig. 2, showing the fines.

side walls of the fire-box as by means of a another and most important purpose. It permits the tubular air connections crossing it to be bent whenever the mouths or inlets of the air passages in the, arch may not register truly with the air feeding .flues.

The a1 ch is made in sections of refractory or other suitable material, and the air passages in the different sections thereof are made to register with each other, and should also register with the proper air feeding lines in the flue sheet were the position of the latter invariable in all locomotives. As a matter of fact, however, the position of the fines even in locomotives of the same type varies considerably. The air passages in the arch if extended to the flue sheet would,thereforc,in most instanccs'not properly register with the air feeding lines, and in such instance the delivery of air would be defective or impossible. The offset in the edge of my deflector, whereby the air passages are terminated at a distance from the flues, permits the tubular connections to be bent to be adjusted to any variation of position of flue tubes.

Having set forth the objects and nature of 1 my invention, 1 will now describe, in detail an embodiment of the same, reference being had to the accompanying drawings in which,

.Figure 1 is a view in longitudinal eleval tion partly sectional, showing my equipment in place in a locomotive. Fig. 2 is a perspective View of my assembled arch. Fig. 3 is a detail view taken on the line 33 v of Fig. 2, showing also the side wall of the fire-box and a supporting bracket for the arch. Fig. 1 is an enlarged detail View also the flue sheet and flue connection to the arch. Fig. 5 is an enlarged detail plan View showing the connections from the arch to In the description to follow that part of l the fire-box toward the cab is referred to as i the rear and that part toward the front l gf the locomotive as the front of the fire- In the fire-box, 1, is a regulation grate 2, supported at its front on the flue sheet 3. Terminating in the flue sheet 3 and opening into the combustion chamber are the usual fiues 1". The air distributing and deflecting z arch 5 forming the subject of the present invention is mounted in the fire-box above the grate. At its forward end 6, the arch rests against the flue sheet, and at any suitable point the arch may be supported on the bracket 8, or by other means.

In my invention as shown in the draw- 5 ings, two of the lower flues 7 are utilized as 5 air feeding and preheating tubes or pipes. These tubes 7 have pipe connections 8 to the front of the locomotive where they open to the atmosphere. A. steam'injector 9'of any suitable type serves to force the air through to the fire-box at any desired or suitable pressure. The steam injector 9 .18

connected to the boiler by a steam pipe 10 by way of the cab, and by means of a valve 11 in the cab, the steam pressure may be controlled by the engineer.

As shown in Fig. 2, the arch which is of refractory or other suitable fire resisting material, is preferably built in sections. This permits the arch to be readily installed in, or removed from, any locomotive; and, by varying the number or character of the sections, an arch may be constructed to accord to any design or size of locomotive fire-box. The arch is shown as inclined downward and forward, and since the side walls of a locomotive fire-box diverge upwardly, the sections to the rear of the arch must be longer than those to the front, if the arch is to extend completely across the fire-box. I prefer to so construct the arch that its lower and upper surfaces are smooth and continuous, and extend at all points substantially across the fire-box. By so constructing the arch, it serves more perfectly as a deflector, and precludes the escape of unburned products of combustion through the fines. Within the scope of certain features of the present invention, however, it would be possible to modify the structure of the arch considerably, and the arch instead of being continuous entirely across the lire-box might be otherwise formed to suit any particular requirement. The form shown, how ever, is believed to provide for the most thorough admixture of the air with the products of combustion and for the best possible burning of the same before they reach the lines.

In the drawing, see Fig. 2, the arch is shown as comprising five transverse sections 12, 13, 14, 15 and 16. This number may varied as desired. The forward of these transverse sections rests at (3 against the flue sheet, and each section to the rear rests upon and forms an air-tight joint with'the section immediately in front of it, by means of shoulders 17. In place of the shoulders 1T, any other suitable interlocking or air-tight connection may be employed. One or more of the sections, such as the section 15, (see Figs. 1 and 3,) may be supported on the side plate 18 of the fire-box or elsewhere, as by means of the bracket 8. Other suitable means of support may, however, be substi-- tuted for the bracket 8.

Each of the transverse sections of the arch is prefm'ably divided longitudinally as at 1!) into one or more pieces. In the draw ings, each transverse section of the arch is shown as divided at the center of the arch into a right and left hand part, interlocked and supported by means of a joint 20, (see Fig. The particular form of this joint ltlt) or locking means is innnaterial, and the t permit the use of the cottttoctiotts number of such longitudinal dividing joints I is also a matter of convenience and mechanical expediency. To facilitate the shaping of the arch in the fire-box, the outside edges of each of the transverse sections are beveled as at 21.,

The front edge of section 12 of the arch is cut away as shown at (see Figs. l and 5) to form a step or offset, wherehy there is space or clearance 23 between the front edge ohrinus that it this a: which (see 1 1g. may he hcht. s that a perfect connection may he made hctwecn the tines and the arrh iltltt.-. \Yltztitct the latter reg not. i.-:

istct precisely with the or clearan e did not exist.

hut on the contrary the nr r atgzj i 13h were of the arch section 12 and the llue sheet 3; and 21 hp or extension 2i, the end (3 ot which rests against the line sheet one end into the space or clearance 2.1% as at 25, (see Fig. 2, and extending r arwardly through the arch, are air feeding and distributing passages. In the arch section 12. there are shown but two of such passages 26. Ir section 13, there are shown four air passages 27, the two to the left converging to one of the passages 2t) in the section 12, and the two to the right to the other passage 26 in the section 12. In the sections ii and 15 are shown four parallel passages 28. registering each with one of the four passages 27 in the section 13, and terminating each in two smaller divergent passages in in the. slab US. The passages 29 do not coir tinne through to the end 30 of the slah or section 16, out are each provided with set-- eral vertical air jet. openings 3t through the app surface of the slab it into the tirehox, The air passages described provid: a continuous path from the inlets '1 in the slab 1'3 through the Various sections or 'lltl).-i of the arch. over a constantly widening to the outlets 3! in the slut) 16, thus dt, vering the air from the, upper surface ot the rear end oil the-arch into the firebox at a point where the air may he most advantageously mixed with the products otcombustion for the burning of the latter. The particular form of the air passages of the arch and the point oi delivery ol' air to the combustion chamber may he. varied as desired: so also may the number oi? air pa sages. in the drawings. 1 have shown two air inlets to the arch. hut those may my in number from a single inlet to as many as may be. desirable,

The tllcli is so positiimed that its forward end rests against: the flue sheet at v uch a level that the airinlets 25 are preterahly in line or register with the tines T selected to he used as air feeding and preheating tubes.

Opening at tail 'lhe tubes '7 are connected to the inlets '25 hy 'the position of the line tubes in ditterent locomotives is not identical; and one of the functions of the clearance or space is to extended to the line sheet. then in the cvcnt the fines did not regist r with the inlet. the air connection would h detectiv or there "'1 when bending i necessti the months oi the inlets 25 are flared :o ii-dun at flI-l.

i have shown my arch so mounted as to take air from certain ol' the tithes which commonly constitute the lower line ol' locomotive lines. The piea. nntnhi-r oi i'l' 7 so used as air l cedcrs is It matter of choice. :n-cordin g to the l' l iliiieittitt ri ol' any pan ticnlar instance. 'lwo. or more. or lessthan two. lines I may he nsol. it may happen that in alinement with the lines T- used as. air Feeders. there are other tines l which are on to have their ordinary tum-l ons ot" conveying the burning gases through the boiler to the stack. here such inst meniiinied lines are in alinemeut w th ttil i'--:- 'lio tithes. it important that the arch do not inter with the passage oi' the ti'tliiiltifi oi' Cont tion to such lines. ilere. therefore. is other important function o? the cit-:trztm-e or space 22 as that space n rmits the utssage oi the products ol' vomlnmioo 1st the end oo of the arch and into any n whi h may hr in alinement n ith tttai 1' u s. in stead of using; on; more oi' w due i may use a specially constru ted air feeding equipment to the li 'c-hox. in so doing. to?! however. the advantage oi no chance in or addition to thc locom ive confirm-inn. which one of the :nivuntit; 'e oi the stru ture shown in the drawing; would he hat.

The structure shown and ri't'lln l in d no answers in an manner the r quirements of air is tln'n'ou g ly lti'titz'iilt l is at all tinn itndcr A arch is adaptahlc does not protrude helo' suiiicicntly to llilll'i tii wit does not lino-v installed and i ii tally indest m'tiiile. n tion ther of may he sired.

T'fhal i claim and zine-iii tcrs Talent is:

l. in a Furna e. a mounted with n th in; having; an in terior air passage till I l'urtmii' at one oil-1r of the arch and open: the walls ol the arch mouth of said passage to form a lip or extension combustion from the fire, an opening in the which rests against one wall of the fire-box to hold the mouth of said passage from said wall of the fire-box, the wall of the fire-box having an air passage therein opposite the edge of the arch, and a tubular connection from the air passage in the wall of the tirebox to the mouth of the passage in the arch.

in a furnace, a fire-box, a plurality of tubes extending into the boiler from one wall of the fire-box, some of said tubes being Flues and one or more being tubes for delivering air to the fire-box, a fire arch having a continuous stepped edge resting against said tire-box wall in alinement with some of said tubes in the latter,,the otfset formed by the step providing a space or clearance between the tubes and the arch, the arch having one or more air passages from said space or clearance discharging into the firebox, and one or more tubular connections across said space or clearance from the air tube or tubes to the passage or passages in the arch.

3. In a furnace, a tire-box, a fire arch projecting into the fire-box from one wall. of the firebox and having an air passage therethrough from that edge of the arch which rests against the wall to suitable points in the surface of the arch within the fire-box, the wall from which the arch projects having therein opposite the edge of the arch an air inlet, a tubular connection from the air passage in the tire-box wall to the air passage in the arch, and the edge of the arch being cut away at the mouth of the air passage to permit of a bend in said tubular connection when the opening in the firebox wall does not register with the mouth of the passage in the arch.

4. In a furnace, a fire-box, a grate therein, a fine sheet forming the front wall of the firebox, fines terminating atthe flue sheet, a fire arch for the products of combustion located between the grate and the tines, the forward end of the arch being at the level of certain of the fiucs at the fiue sheet, the lower portion of the front edge of the arch resting against the flue sheet immediately below said certain fiues, and the upper portion of the front edge being cutaway to provide passage for the products of combustion from the tire-box to those fines at the level of the arch, the arch having one or more air or gas delivering passages therethrough opening to the rear into the firebox and to the front into the space formed by the cutaway portion of the arch, and tubular connections across said space from one or more of the fiues into the passage or passages through the arch.

5. In a furnace, a fire-box, a fire arch in the fire-box in the path of the products of wall of the fire-box for delivering air into the latter, the arch being cut or forme to have a step therein at one edge, the outermost portion of said edge of the arch resting against the wall of the fire-box immediately adjacent the air opening therein, the arch having an air passage therethrough opening at one end into the fire-box and at the other end into the space formed by the step in the edge of the arch, and a tubular connection across said space from the opening in the tire-box 'wall to the air passage in the arch, the step forming said space being elongated to permitthe bending of said tubular connections in event the passage in the arch fails to register with the opening in the fire-box wall.

6. In a furnace, a fire-box, a grate therein, a fine sheet forming the front wall of the fire-box, fines terminating at the fiue sheet at a point above the level of the fuel on the grate, a fire arch for the products of combustion extending across the fire-box substantially from side to side, the forward end of the arch being substantially on the level of the lower fiues of the flue sheet, the lower portion of the front edge of the arch resting against the fiue sheet immediately below the fines, and the upper portion of the front edge being cut away to provide passage to the fines for the products of combustion from the fire-box, the arch having one or' flues, flue sheet and grate bars, of an arch made of suitable material supported above the latter, the said arch having its under and top surfaces smooth throughout ,its length and provided with a fiat front surface, which latter abuts the fiue sheet and provided with internal air ducts'which at the rear end of the arch and at the top thereof communicate with the interior of the said fire-box, and tubular members'extending fromthe air ducts in the arch to certain of the fines, the arch also being provided with a cutaway portion at its front end for adjusting and inserting the said connection. v v

Signed by me at New York, New York, this 25th day of Au ust 1908. 9

ALB RT F. KINGSLEY. Witnesses:

7 ROBERT G. PERRY,

F. J. ERWIN. 

